The SitePoint Forums have moved.

You can now find them here.
This forum is now closed to new posts, but you can browse existing content.
You can find out more information about the move and how to open a new account (if necessary) here.
If you get stuck you can get support by emailing forums@sitepoint.com

If this is your first visit, be sure to
check out the FAQ by clicking the
link above. You may have to register
before you can post: click the register link above to proceed. To start viewing messages,
select the forum that you want to visit from the selection below.

disable form submit until all form elements completed

Hi,

I am developing a survey and I want to set it up so that the submit button can't be clicked until all of the elements in the form are completed (there are radio buttons, dropdowns, checkboxes and text boxes)

I have seen forms where the submit button appeared but it was shaded out or faded. Does anyone know how I can do this?

Sounds complicated. I expect you'd have to call a function to check the contents of each field each time any field contents or focus changed, then enable the button only if all fields meet your pre-set criteria.